+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   340P/Boattini Classification: Jupiter-family Comet          SPK-ID: 1002999 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2457800.5 (2017-Feb-16.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .279501204981309 9.3987e-06   a 4.251094622445314 8.3396e-05 au q 3.062908552982286 2.9457e-05 au i 2.077422134958702 7.9182e-05 deg node 291.7635108763762 0.0010745 deg peri 35.76741687756649 0.0016465 deg M 10.06525307069106 0.00027431 deg tp 2457710.989953534161 (2016-Nov-18.48995353) 0.0041803 TDB period 3201.471090829674 8.77 0.094207 0.0002579 d yr n .1124483057276974 3.3089e-06 deg/d Q 5.439280691908342 0.00010671 au Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A1 [EST] -2.108237798868988E-9 2.317E-9 A2 [EST] -7.12131188860946E-10 8.806E-10 A3 [EST] -7.125725277254861E-9 4.233E-10 ALN [SET] .0408373333128795 n/a DT [EST] -418.5270143176429 32.19 NK [SET] 2.6 n/a NM [SET] 2. n/a NN [SET] 3. n/a R0 [SET] 5. n/a   Orbit Determination Parameters    # obs. used (total)      311      data-arc span      3836 days (10.50 yr)      first obs. used      2006-05-25      last obs. used      2016-11-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      condition code      4      norm. resid. RMS      .51914      source      ORB      producer      Davide Farnocchia      solution date      2017-Jan-19 17:04:36   Additional Information  Earth MOID = 2.05224 au   Jupiter MOID = .083214 au   T_jup = 2.959  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 11.9   0.9 24 from 136 observations, assumed slope, autocmod 2.6h comet total magnitude slope K1 11.   n/a 24 autocmod 2.6h comet nuclear magnitude M2 14.7   0.6 24 from 152 observations, autocmod 2.6h comet nuclear magnitude slope K2 5.   n/a 24 autocmod 2.6h comet nuclear phase coefficient PC 0.03   n/a 24 autocmod 2.6h [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2016.9   340P/2016 N2         2008.1   340P/2008 T1        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 09:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin